Dental soldering apparatus.



PATBNTED SEPT. 24', 1907.

E. PLANNIGAIN. DENTAL SOLDERING APPARATUS,

APPLICATION FILED MAY 20. 1907.

UNITEB STATES PATENT OFFICE..

EDWARD FLANNIGAIN,

OF ST. LOUIS, MISSOURI, ASSIGNOR TO THE UNITED APPLIANCE MANUFACTURING COMPANY, OF ST. LOUIS, MISSOURI, A CORPORATION OF MISSOURI.

DENTAL SOLDERING APPARATUS.

Specification of Letters Patent.

Patented Sept. 24, 1907.

Application filed May 20,1907. Serial No. 374,588.

To all whom it may concern:

Be it known that I, EDWARD FLANNIGAIN, a'citizen or' the United States, and a resident of the city oi St. Louis and State oi Missouri, have invented a new and useful Improvement in Dental Soldering Apparatus, of which the following is a speciication.

My invention relates to dental soldering appliances. It has for its principal object to facilitate the manipulation of the work so as to control the flow oi the solder.

It consists principally in mounting the work and the heater thereiorso as to be movable universally without changing their relative arrangement.

It also consists in the arrangements and combinations oi parts hereinafter described and claimed.

In the accompanying drawing, which forms part of this specification, and wherein like symbols refer to like parts wherever they occur, Figure l isa vertical view, partly in section and partly in elevation, of my device with the cover in place; Fig. 2 is a vertical view at right angles to the view oi Fig. l, with the cov er removed and the cup shown in section, the burner being tilted at an angle; Fig. 3 is a detail perspective view oi the shell oi the -combustion chamber and the support for the holder for the investment material; Fig. 4 is a perspective view oi a modiiication oi the parts shown in Fig. 3; Fig. 5 is a perspective view of the investment material and the holder therefor, and, Fig.`6 is a perspective view oi a modiiied orm oi such holder.

The base of my device comprises an ordinary tripod or pedestal l. The upper end oi this pedestal is split or slotted and a horizontal member 2 is'swiveled or pivoted between the split portions to turn on a horizontal axis. In order that the horizontal member may be easily turned and still have suflicient irictional engagement with its support to remain in any position to which it may be turned, an adjustable binding screw 3 extends through the split portions of the pedestal. At the end oi the horizontal member is mounted a soldering heater; and at the other end, said member is provided with a laterally projecting arm or hand lever 4 by which it may position.

The soldering heater comprises a cup or hemispherical shell 5 through the lower part of which extends a gas pipe or the tube 6 oi a Bunsen burner 7 which communicates through a tube 8 with any convenient source of gas supply. The end of the burner tube 6 terminates in a combustion chamber which is formed by a hollow casting or shell 9. The bottom oi said shell 9 has a circular opening which its loosely over the end portion oi the gas pipe or burner tube 6. The top oi said shell is a plate l0 which has a multiplicity of holes ll ier the escape of the unconsumed gas as well as for the products of combustion. By this arrangement, the

be turned to any desired,

shell constituting the combustion chamber is swiveled on the end oi the gas pipe or burner tube, so that it may be easily turned to any desired position thereon.

The .top plate I() of the combustion chamber is provided with supports adapted to receive and hold the work to be heated. As shown in the drawing, said top plate is provided at diametrically opposite points with outwardly and upwardly extending arms I2 which are provided with upwardly extending pins I3. These pins are adapted to enter eyes or loops I4 formed in metal bands l5 or other suitable holders or the investment material IG surrounding the work 17 to be soldered. In order to prevent the investment material from becoming loose prematurely, it is desirable to periorate or roughen the band or holder in order that such material may engage therewith. Preferably, al'so, such material is soluble in water so that it may be separated ,from the holder merely by immersion in water.

Obviously, the shell at the top ot" the burner tube may be dispensed with or it may be fixed with respect to the burner tube. In either case, `the arms l2 which support the holder for the investment material are fixed to a ring or collar I8 which swivels loosely on the burner tube, as illustrated in Fig. 4. Obviously, the holder for the investment material may be made in a variety oi ways.

As illustrated in Fig. 5 the holder is a mere band having laterally extending arms which are perforated near their ends.

As illustrated in Fig. 6, the holder is a strip oi metal bent into circular form at the middle and having late eral projections with eyes formed therein.

, to be soldered having been previously positioned in ther investment material, the holder l5 with such material therein is applied to the heater by fitting the eyes oi the holder over the pins on the shell of the combustion chamber. A cover I9 is then placed on the hemispherical cup and the gas is then turned on and ignited so as to heat and dry out the investment material. While the burner is still in operation, the cover is removed and the solder is applied to the work, and, preferably the iame of a blow pipe is impinged upon the particular portion oi the solder that is being worked so as to fuse the solder and make it flow easily.

. In the initial stage oi the action, the position oi the the cup, but does not determine the direction of the solder flow. The direction of iioW is determined by turning the shell on the burner tube so as to tilt the investment material in the desired direction. The blow pipe itself furnishes a convenient instrument for turning the shell or the holder of the investment material. By this arrangement, the amount of inclination and the direction of inclination are Aboth under the easy control of the operator.

Obviously, the device hereinbefore described admits of considerable variation Without departing from my invention, and I do not Wish to be restricted to the exact construction described.

What I claim as my invention and desire t'o secure by Letters Patent is:

1. A soldering apparatus comprising a burner swiveled on a horizontal axis and a work holder movable with the burner and swiveled with respect to the axis thereof.

2. A soldering apparatus comprising a pedestal, a member sWiveled thereon on a horizontal axis, a burner snpported by said. horizontal member, a work holder above and movable with said burner and swiveled with respect thereto.

3. A soldering apparatus comprising upper portion is split, a member horizontal axis, a screw for varying the friction of said horizontal member, and a work holder above and movable with said burner and swiveled with respect thereto.

4. A soldering apparatus comprising a pedestal, a horizontal member swiveled thereon on a horizontal axis, a Work holder movable with the burner and swiveled with respect thereto, means for varying the frictional engagement of the horizontal member with the nedestal and a hand piece for turning said member.

a pedestal whose swiveled therein on a 5. A soldering apparatus comprising a pedestal, a member swiveled thereon on a horizontabaxis, a cup mounted on said horizontal member, and a burner tube extending through said cup, a support swiveled on said tube, and a work holder on said support.

6. A soldering apparatus comprising a pedestal, a meuiber swiveled thereon on a horizontal axis, a cup mounted on said horizontal member, a burner tube extending through said cup, a support swiveled on said tube, pins on said support and a work holder having eyes Iitting over said pins.

7. A soldering apparatus comprising a pedestal, a horizontal member swiveled thereon, a cup mounted on said horizontal member, a burner tube extending through said cup, a shell swiveled on said tube and constituting a con1- bustion chamber for said burner, laterally extending arms on said shell, and a work holder on said arms.

8. A soldering apparatus comprisinga pedestal. a horizontal member swiveled thereon, a cup mounted on .said horizontal member, a burner tube extending through said cup, a shell swiveled on said tube and constituting a combustion chamber for said burner, laterally extending arms on said shell, a Work holder' 011 said arms, and means for turning said horizontal member.

9. A soldering apparatus comprising a pedestal, a horizontal member swiveled thereon, a cup mounted on Isaid horizontal member, a burner tube extending through said cup, a shell swiveled on said tube and constituting a combustion chamber t'or said burner, laterally extending arms on said shell, a Work holder on said arms, means [or turning said horizontal member, and means for varying its frictional contact with the pedestal.

Signed at St. Louis, Missouri, this 17th day ot' May, 1907.

EDWARD FLANNIGAIN.

Witnesses JULIA B. Mneowx, G. A. PnNNiNG'roN. 

